Description
VitraPOR® glass filter plate is a circular borosilicate 3.3 disc for laboratory filtration applications requiring porosity grade 4. The plate measures 140 mm in diameter and presents a fine defined pore structure suited to duties that call for this porosity class. Thickness is specified as 10,0 mm with a tolerance of ± 2,2 mm, yielding a sturdy disc for installation in filter holders, funnels and purpose-built glass systems. An untreated surface and round, centred form support reliable seating in the finished assembly. Made from borosilicate glass 3.3, the plate offers the chemical and thermal resistance associated with standard laboratory glass media. This filter plate from manufacturer ROBU - Stereon is packed as one piece and forms part of the VitraPOR® glass filter plate series. Porosity grade 4 addresses finer filtration needs within the graded VitraPOR® portfolio while retaining the large 140 mm diameter. It is a practical choice for laboratories that need an inert glass filter medium with documented porosity, thickness tolerance and geometry for sample clarification and general filtration setups.
This article is part of Sintered glass filter plates & discs, in Filtration.
Key features
- Pack size: 1 pc
- Brand: VitraPOR®
- Material: Borosilicate glass 3.3
- Diameter: 140 mm
- Porosity: 4
- Thickness: 10,0 mm ± 2,2 mm
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Questions about Filter Disc, centered, 140 mm, Por. 4 Thickness 10 mm ± 2.2 mm
What is this article?
Filter Disc, centered, 140 mm, Por. 4 Thickness 10 mm ± 2.2 mm is the article on this page. Luminix Health distributes ROBU - Stereon for laboratory use. It sits in Sintered glass filter plates & discs, inside Filtration, in Lab consumables.
A sintered glass filter is a disc of fused glass particles with a porosity grade, often 0 to 5, from coarse to fine. It is cleaned and reused. The porosity number, not a micrometre guess, is the specification. Hydrofluoric acid and strong alkali attack the glass.
Filtration holds back what is larger than the pores and lets the rest through. Paper is the ordinary laboratory filter. A membrane has a stated pore size and a polymer that must survive the solvent. A syringe filter is that membrane in a housing on a syringe. Glass fibre takes a higher dirt load. Ultrafiltration holds back macromolecules and passes salts. The pore size, the chemical compatibility and the volume are the three choices. Laboratory apparatus around filtration is indexed under ISO laboratory apparatus.
Which category should I open next?
The category is Filtration. The sub-category is Sintered glass filter plates & discs. The catalogue is Lab consumables.
Shelves beside this one are Filter paper, Syringe filters, Filter cartridges & capsules, Membrane filters, Glass & quartz fibre filters, Bottle-top & vacuum filtration units, Ultrafiltration & concentrators, Filtration accessories, Extraction thimbles and Dialysis tubing & devices.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
